diff -ur libcifx.org/src/netx_tap/netx_tap.c libcifx/src/netx_tap/netx_tap.c
--- libcifx.org/src/netx_tap/netx_tap.c	2015-07-13 09:59:26.000000000 +0200
+++ libcifx/src/netx_tap/netx_tap.c	2015-11-02 12:44:28.028051467 +0100
@@ -162,7 +162,7 @@
         {
           if(g_ulTraceLevel & TRACE_LEVEL_ERROR)
           {
-            USER_Trace( internal_dev->devinst, TRACE_LEVEL_ERROR, "Error allocating tap device for '%s'. Error=%d",         config->cifx_name, internal_dev->eth_fd);
+            USER_Trace( internal_dev->devinst, TRACE_LEVEL_ERROR, "Ethernet-IF Error: Error allocating tap device for '%s'. Error=%d",         config->cifx_name, internal_dev->eth_fd);
           }
         } else
         {
@@ -171,7 +171,7 @@
 
           if(g_ulTraceLevel & TRACE_LEVEL_INFO)
           {
-            USER_Trace( internal_dev->devinst, TRACE_LEVEL_INFO, "Successfully created '%s' on device '%s'", internal_dev->cifxeth_name, config->cifx_name);
+            USER_Trace( internal_dev->devinst, TRACE_LEVEL_INFO, "Ethernet-IF Info: Successfully created '%s' at channel %d on device '%s'", internal_dev->cifxeth_name, channel_no, config->cifx_name);
           }
           /* Register for ethernet service on device */
           if (CIFX_NO_ERROR == (cifxeth_register_app( internal_dev, 1)))
@@ -181,7 +181,7 @@
             {
               if(g_ulTraceLevel & TRACE_LEVEL_ERROR)
               {
-                USER_Trace( internal_dev->devinst, TRACE_LEVEL_ERROR, "Error creating cifX Ethernet device threads.");
+                USER_Trace( internal_dev->devinst, TRACE_LEVEL_ERROR, "Ethernet-IF Error: Error creating cifX Ethernet device threads.");
               }
             } else
             {
@@ -206,7 +206,7 @@
               {
                 if(g_ulTraceLevel & TRACE_LEVEL_ERROR)
                 {
-                  USER_Trace( internal_dev->devinst, TRACE_LEVEL_ERROR, "Not enough memory to create cifx virtual ethernet interface!");
+                  USER_Trace( internal_dev->devinst, TRACE_LEVEL_ERROR, "Ethernet-IF Error: Not enough memory to create cifx virtual ethernet interface!");
                 }
               }
             }
@@ -370,7 +370,7 @@
       {
         USER_Trace(ptDevInst,
                    TRACE_LEVEL_ERROR,
-                   "Error reading channel info block to detect channels usable for ethernet interface (lRet=0x%08X).",
+                   "Ethernet-IF Error: Error reading channel info block to detect channels usable for ethernet interface (lRet=0x%08X).",
                    lRet);
       }
 
@@ -400,6 +400,15 @@
         }
       }
       lRet = CIFX_INVALID_BOARD;
+      if (0 == fComChannelFound)
+      {
+        if(g_ulTraceLevel & TRACE_LEVEL_DEBUG)
+        {
+          USER_Trace(ptDevInst,
+              TRACE_LEVEL_DEBUG,
+              "Ethernet-IF Info: No communication channel found, skip further search for ethernt-if!\n");
+        }
+      }
       /* Check system info block entries */
       for( ; (fComChannelFound && ((ulSearchIdx + ulStartIndex) < CIFX_MAX_NUMBER_OF_CHANNELS)); ++ulSearchIdx)
       {
@@ -416,6 +425,15 @@
           break;
         }
       }
+      if ((1 == fComChannelFound) && (lRet != CIFX_NO_ERROR))
+      {
+        if(g_ulTraceLevel & TRACE_LEVEL_DEBUG)
+        {
+          USER_Trace(ptDevInst,
+                   TRACE_LEVEL_DEBUG,
+                   "Ethernet-IF Info:: No ethernet channel found at channels %d-%d on %s!\n",ulStartIndex, ulSearchIdx + ulStartIndex, szDeviceName);
+        }
+      }
     }
     /* Close system device */
     xSysdeviceClose(hSysdevice);
@@ -451,7 +469,7 @@
     {
       if(g_ulTraceLevel & TRACE_LEVEL_ERROR)
       {
-        USER_Trace( internal_dev->devinst, TRACE_LEVEL_ERROR, "Error creating tap device (TUNSETIFF) '%s'.    Error=%d", prefix, errno);
+        USER_Trace( internal_dev->devinst, TRACE_LEVEL_ERROR, "Ethernet-IF Error: Error creating tap device (TUNSETIFF) '%s'.    Error=%d", prefix, errno);
       }
       close(ret);
       ret = err;
@@ -464,7 +482,7 @@
   {
     if(g_ulTraceLevel & TRACE_LEVEL_ERROR)
     {
-      USER_Trace( internal_dev->devinst, TRACE_LEVEL_ERROR, "Error opening tun interface '%s'. Error=%d", TUNTAP_DEVICEPATH, errno);
+      USER_Trace( internal_dev->devinst, TRACE_LEVEL_ERROR, "Ethernet-IF Error: Error opening tun interface '%s'. Error=%d", TUNTAP_DEVICEPATH, errno);
     }
     ret = -errno;
   }
@@ -542,7 +560,7 @@
       {
         if(g_ulTraceLevel & TRACE_LEVEL_ERROR)
         {
-          USER_Trace( internal_dev->devinst, TRACE_LEVEL_ERROR, "Exception on Ethernet Device file descriptor, exiting thread");
+          USER_Trace( internal_dev->devinst, TRACE_LEVEL_ERROR, "Ethernet-IF Error: Exception on Ethernet Device file descriptor, exiting thread");
         }
         break;
       }
@@ -578,7 +596,7 @@
           {
             if(g_ulTraceLevel & TRACE_LEVEL_ERROR)
             {
-              USER_Trace( internal_dev->devinst, TRACE_LEVEL_ERROR, "Error sending frame to cifX Device. (Error=0x%08X)", cifx_error);
+              USER_Trace( internal_dev->devinst, TRACE_LEVEL_ERROR, "Ethernet-IF Error: Error sending frame to cifX Device. (Error=0x%08X)", cifx_error);
             }
           }
           internal_dev->active_sends++;
@@ -593,7 +611,7 @@
     {
       if(g_ulTraceLevel & TRACE_LEVEL_ERROR)
       {
-        USER_Trace( internal_dev->devinst, TRACE_LEVEL_ERROR, "Error on select for Ethernet Device file descriptor, exiting thread");
+        USER_Trace( internal_dev->devinst, TRACE_LEVEL_ERROR, "Ethernet-IF Error: Error on select for Ethernet Device file descriptor, exiting thread");
       }
       break;
     }
@@ -657,7 +675,7 @@
                 {
                   if(g_ulTraceLevel & TRACE_LEVEL_ERROR)
                   {
-                    USER_Trace( internal_dev->devinst, TRACE_LEVEL_ERROR, "Error sending incoming data to ethernet device (%d)\n", ret);
+                    USER_Trace( internal_dev->devinst, TRACE_LEVEL_ERROR, "Ethernet-IF Error: Error sending incoming data to ethernet device (%d)\n", ret);
                   }
                 }
               }
@@ -769,7 +787,7 @@
     {
       if(g_ulTraceLevel & TRACE_LEVEL_ERROR)
       {
-        USER_Trace( internal_dev->devinst, TRACE_LEVEL_ERROR, "Failed to set MAC address of %s (%d)", internal_dev->cifxeth_name, errno);
+        USER_Trace( internal_dev->devinst, TRACE_LEVEL_ERROR, "Ethernet-IF Error: Failed to set MAC address of %s (%d)", internal_dev->cifxeth_name, errno);
       }
     }
   }
@@ -812,7 +830,7 @@
     /* This is a transport error */
     USER_Trace(internal_dev->devinst,
               TRACE_LEVEL_ERROR,
-              "Error in cifXEthTransferPacket()(lRet=0x%08X).",
+              "Ethernet-IF Error: Error in cifXEthTransferPacket()(lRet=0x%08X).",
               lRet);
   } else
   {
@@ -821,7 +839,7 @@
     {
       USER_Trace(internal_dev->devinst,
                 TRACE_LEVEL_ERROR,
-                "Error sending Register-Application-Request (lRet=0x%08X).",
+                "Ethernet-IF Error: Error sending Register-Application-Request (lRet=0x%08X).",
                 lRet);
     }
   }
@@ -963,7 +981,7 @@
   {
     if(g_ulTraceLevel & TRACE_LEVEL_ERROR)
     {
-      USER_Trace( internal_dev->devinst, TRACE_LEVEL_ERROR, "Failed to retrieve extended info of %s (0x%X)", lRet);
+      USER_Trace( internal_dev->devinst, TRACE_LEVEL_ERROR, "Ethernet-IF Error: Failed to retrieve extended info of %s (0x%X)", lRet);
     }
   }
   return lRet;